Invasive Insects

The Goldspotted oak borer (GSOB) is an invasive pest that has contributed to oak tree mortality. Widespread oak mortality can have severe implications to the environment and human safety. Due to the current and potential impacts to California oaks and communities, locally and statewide, multiple agencies and organizations are working together in the research, education and outreach efforts regarding this pest.

Other invasive pest are the Kuroshio shot hole borer (Euwallacea kuroshio) and polyphagous shot hole borer , which can attack several species of trees.

These pests can be transported to Topanga by infected firewood. For that reason make sure all the firewood you buy, especially oak, is from a local source. (If it's not local then let your firewood dealer know about the threat). For more information, including how to report a suspected infestation click here